CN206976037U - The manufacturing system of anisotropy conductive film - Google Patents

Abstract

The utility model is a kind of manufacturing system of anisotropy conductive film, include control main frame, spill ball machine, scrape ball machine, grab ball transfer interpreter and make-up machine, wherein spill ball machine, scrape ball machine, ball transfer interpreter and make-up machine is grabbed all to connect with control main frame and by receiving the control main frame action that to be instructed progress corresponding, ball machine is spilt to spray anisotropy conducting sphere, the upper surface of uniform fold mould, ball machine is scraped to remove unnecessary anisotropy conducting sphere using scraper or blow gun portion, ball transfer interpreter is grabbed to pick up the anisotropy conducting sphere on mould and take away pothole, further attached and be squeezed into film substrate surface, adhesive coated film is covered on film substrate surface by make-up machine, coat exposed anisotropy conducting sphere, the anisotropy conducting sphere for being embedded in film substrate is positioned at same level height.Reach the requirement of the accurate encapsulation of small spacing.

Description

The manufacturing system of anisotropy conductive film

Technical field

A kind of manufacturing system of anisotropy conductive film is the utility model is related to, especially with spilling ball machine, scrape ball machine, grab Ball transfer interpreter and make-up machine, anisotropy conductive film have in same level height and are the spy that is spacedly distributed of single layer structure The anisotropy conducting sphere of property.

Background technology

, it is necessary to which different electronic components is electrically connected into the electronic circuit to circuit board in electronics industry, and The most frequently used mode is to be welded using solder with reaching, such as tool cold melt characteristic and the terne metal with preferable electrical conductivity Solder, solder fusing can be first made by heating and contact electronic component and electronic circuit simultaneously, then solidified after the cooling period Solder and firm connecting electronic component and electronic circuit.As end product is to light, thin, short, small demand and to reach province The characteristic of electricity, the especially electronic component of integrated circuit (Integrated Circuit, IC) are and right, it is necessary to further reduce In surface adhering element (Surface Mount Device, SMD), typically usable high temperature tin stove is carried with accelerating soldering High yield.

The LED/LED field of display increasingly to be progressed greatly for product, not only the size of display panel is continuously increased, and is solved Analysis degree also improves constantly so that is connected to panel to provide drive signal and drives the driving IC (Driver IC) of each pixel More compact arranged electronic element pins are needed, use the demand for the fine spacing (Fine Pitch) for meeting display panel.

In the prior art, anisotropic conductive film (Anisotropic Conductive Film, ACF) is typically used With electrical connection driving IC to panel, wherein ACF has unilateal conduction and glued fixed function concurrently in itself, has up and down (Z axis) Electrically conducting and the characteristic of left and right plane (X, Y-axis) insulation, and have it is excellent it is damp proof, then, conductive and insulation function.Specifically For, ACF composition mainly includes conducting particles and sticky glue material Two parts, respectively there is layer protecting film (PET Film) again up and down Come protections contact when transporting with the external world, and its making is to be afraid of after conducting particles is mixed with sticky glue material through high-precision apply Technology is coated on diaphragm and formed.When in use, the pin of electronic component is contact ACF, while ACF attaches to electric wire Lu Shang, suitably extruded by electronic component after heated ACF with so that the conducting particles in ACF contact with each other in a pressing direction and Electrically conduct, remaining conducting particles not being extruded to then maintains original separation and discontiguous state, that is, is not turned on, thus reach Into the circuit turn-on of ad-hoc location, meets the needs of fine spacing.

However, the shortcomings that above-mentioned prior art in ACF conducting particles be uniform and be randomly dispersed in whole ACF, especially It is in differentiated levels, so in extruding, conducting particles is possible to turn in laterally contacting with each other, and causes electronics Incorrect link on circuit, cause preset function impaired or fail.

Therefore, a kind of manufacturing system of the anisotropy conductive film of innovation is sought after, using the film for having multiple potholes Tool, by spill ball, wiper ball, grab ball transfer, make-up machine processing system and form tool individual layer and in the conductive particle of same level height The anisotropy conductive film of son distribution, uses and solves above-mentioned problem of the prior art.

Utility model content

Main purpose of the present utility model is to provide a kind of manufacturing system of anisotropy conductive film, incorgruous to make Property conductive film, the encapsulation procedure of glass substrate engagement is carried out for driving IC, comprising control main frame, ball machine is spilt, scrape ball machine, grab ball Transfer interpreter and make-up machine, wherein spilling ball machine, scraping ball machine, grab ball transfer interpreter and make-up machine and be all connected and received with control main frame The instruction of control main frame carries out corresponding action.

Spill ball machine and include storage device and nozzle, wherein storage device stores multiple anisotropy conducting spheres.Ball machine is spilt through control Host computer control processed sprays anisotropy conducting sphere via nozzle, and is uniformly distributed and covers the upper surface of mould.The upper table of mould Bread contains multiple potholes, is arranged with a specific pattern, such as specific pattern can be matrix pattern.And pothole has transverse width And longitudinal depth, wherein, transverse width has trans D, for example trans D can be 1 micron to 10 microns, and longitudinal depth can For 0.5 micron to 10 microns, the spacing between especially adjacent two pothole can be 10 microns to 100 microns.

The diameter of especially anisotropy conducting sphere is less than the trans D of pothole on mould, and pothole is conductive by anisotropy Ball is filled up.In addition, the top of anisotropy conducting sphere may protrude pothole according to longitudinal depth of pothole or whole anisotropy is led Electric ball is absorbed in pothole.

Scrape ball machine and further include scraper or blow gun portion, scrape ball machine according to whether protruding pothole at the top of anisotropy conducting sphere and Ball mechanism is scraped comprising difference, unnecessary anisotropy conducting sphere is struck off using scraper or blow gun portion, removed.Now each pothole The anisotropy conducting sphere of accommodating single, and mould upper surface does not have any anisotropy conducting sphere.

Grabbing the lower surface of ball transfer interpreter has viscosity, and under control main frame control, by the anisotropy conducting sphere on mould Pick up and take away pothole, further the opposite sex is attached and is squeezed into film substrate surface to conducting sphere, its top is exposed thin Outside film base material, then remove and grab ball transfer interpreter.

Make-up machine is controlled through control main frame, and adhesive coated film is covered in into film substrate upper surface and lower surface, wrapped simultaneously Cover exposed anisotropy conducting sphere, and be bonded to each other with film substrate so that anisotropy conducting sphere sandwiched film substrate with Between adhesive coated film, furthermore, the anisotropy conducting sphere for being embedded in film substrate is positioned at same level height, is formed Anisotropy conductive film.

Brief description of the drawings

Fig. 1 shows the schematic diagram of the manufacturing system of the utility model anisotropy conductive film.

Fig. 2 shows the mould schematic diagram of the manufacturing system of the utility model anisotropy conductive film.

Fig. 3 shows anisotropy conductive ball structures schematic diagram.

Fig. 4 A~Fig. 4 B, which are shown, grabs ball transfer interpreter application example schematic diagram.

Fig. 5 shows the film substrate schematic diagram for including anisotropy conducting sphere.

Fig. 6 shows anisotropy conductive film schematic diagram.

Wherein, description of reference numerals is as follows：

The manufacturing system of 1 anisotropy conductive film

10 control main frames

20 spill ball machine

30 scrape ball machine

40 grab ball transfer interpreter

41 lower surfaces

43 teats

50 make-up machines

A film substrates

B adhesive coated films

D1 trans Ds

D2 spacing

D3 widthwise sizes

M moulds

MS upper surfaces

MH potholes

P anisotropy conducting spheres

Embodiment

Coordinate diagram and reference to do more detailed description to embodiment of the present utility model below, make to be familiar with ability The technical staff in domain can implement according to this after this specification is studied carefully.

Referring to Fig. 1, the schematic diagram of the manufacturing system of the utility model anisotropy conductive film.The utility model anisotropy The manufacturing system 1 of conductive film includes control main frame 10, spills ball machine 20, scrapes ball machine 30, grabbing ball transfer interpreter 40 and make-up machine 50, Wherein spill ball machine 20, scrape ball machine 30, grab ball transfer interpreter 40 and make-up machine 50 be all connected with control main frame 10 and by receive control master The instruction of machine 10 carries out corresponding action, to make anisotropy conductive film.

Spill ball machine 20 and include storage device and nozzle, wherein storage device stores multiple anisotropy conducting sphere P.Spill ball machine 20 Controlled through control main frame 10 and spray anisotropy conducting sphere P via nozzle, and be uniformly distributed and cover mould M upper surface MS. Mould M upper surface MS includes multiple pothole MH, is arranged with a specific pattern, such as specific pattern can be matrix pattern, such as Shown in the utility model Fig. 2.And pothole MH has transverse width and longitudinal depth, wherein, transverse width has trans D D1, Such as trans D can be 1 micron to 10 microns, longitudinal depth can be 0.5 micron to 10 microns, especially adjacent two potholes MH it Between space D 2 can be 10 microns to 100 microns.

Especially anisotropy conducting sphere P diameter is less than the trans D D1 of pothole MH on mould M, and pothole MH is different Tropism conducting sphere P is filled up.In addition, anisotropy conducting sphere P top may protrude pothole MH according to pothole MH longitudinal depth Or whole anisotropy conducting sphere P is absorbed in pothole MH.

Above-mentioned ball machine 20 of spilling controls via control main frame 10, discharges anisotropy conducting sphere P through nozzle using gravity, or Anisotropy conducting sphere P is sprayed onto mould M through nozzle using pressure-air.

For anisotropy conducting sphere P-structure as shown in figure 3, general, anisotropy conducting sphere P is comprising macromolecular core body, conduction Layer and macromolecule coating layer, wherein conductive layer surround macromolecular core body, and macromolecule coating layer surrounds conductive layer, and conductive Layer tool ductility, the part table of beneath conductive layer when macromolecule coating layer is rupturing under by stress deformation, can be exposed Face.For more specific, conductive layer can be the sandwich construction comprising nickel dam and layer gold, wherein the covering of lower surface system, the encirclement of layer gold The upper surface of whole nickel dam.

Scrape ball machine 30 and further include scraper or blow gun portion, scrape whether ball machine 30 protrudes according to anisotropy conducting sphere P tops Pothole MH and scrape ball mechanism comprising difference, unnecessary anisotropy conducting sphere P is struck off using scraper or blow gun portion, removed.Specifically For, i.e., depending on whether pothole MH longitudinal depth is more than anisotropy conducting sphere P diameter, if pothole MH longitudinal depth is big In the diameter equal to anisotropy conducting sphere P, then anisotropy conducting sphere P is fully sunk in pothole MH, the not prominent pothole MH in top, Scraping ball machine 30 and being controlled through control main frame 10 scraper can be used to strike off unnecessary anisotropy conducting sphere P along mould M upper surface MS；If Pothole MH longitudinal depth is less than anisotropy conducting sphere P diameter, protrudes pothole MH at the top of anisotropy conducting sphere P, scrapes ball machine 30 Being controlled through control main frame 10 blow gun portion can be used to spray gas along mould M upper surface MS, remove unnecessary anisotropy conducting sphere P.Now each pothole MH only houses the anisotropy conducting sphere P of single, and mould M upper surface MS are led without any anisotropy Electric ball P.

Grabbing the lower surface 41 of ball transfer interpreter 40 has viscosity, and under the control of control main frame 10, by the anisotropy on mould M Conducting sphere P is picked up and is taken away pothole MH, and further the opposite sex is attached and is squeezed into film substrate A surfaces to conducting sphere P, then Ball transfer interpreter 40 is grabbed in removal.Specifically, if pothole MH longitudinal depth is less than anisotropy conducting sphere P diameter, anisotropy is led Prominent pothole MH at the top of electric ball P, flat lower surface 41 can be used by grabbing ball transfer interpreter 40, as shown in Figure 4 A, utilize lower surface 41 viscosity picks up anisotropy conducting sphere P；If pothole MH longitudinal depth is more than or equal to anisotropy conducting sphere P diameter, also I.e. anisotropy conducting sphere P is fully sunk in pothole MH, the not prominent pothole MH in top, lower surface 41 can be used to have multiple prominent Ball transfer interpreter 40 is grabbed in portion 43, and as shown in Figure 4 B, anisotropy conducting sphere P is picked up.The bottom tool viscosity of each teat 43, and it is prominent Between the widthwise size D3 in portion is less than the trans D D1 of pothole, and the adjacent spacing of two teats 43 is adjacent with two pothole MH Away from equal, i.e., teat 43 is in alignment with corresponding pothole MH.

Grab after anisotropy conducting sphere P attaches and be squeezed into film substrate A by ball transfer interpreter 40, its top is exposed in film base Outside material A, then remove and grab ball transfer interpreter 40.Preferable mode is that via a heater, heating makes it in advance by film substrate A Soften, be advantageous to grab ball transfer interpreter 40 and attach, extrude anisotropy conducting sphere P into film substrate A surfaces, and cooled down by one Time and after film substrate A is shaped, then remove and grab ball transfer interpreter 40.

Further, grabbing ball transfer interpreter 40 can be made up of porous material, and can by impose negative pressure and to grabbing ball transfer interpreter Lower surface provides upward suction, and anisotropy conducting sphere P is drawn, captured as grasp force, wherein porous material can Comprising dimethyl silicone polymer (polydimethyl siloxane, PDMS), PFPE (perfluoropolyether, PFPE), polypropylene (polypropylene, PP), polyvinylidene fluoride (polyvinylidene fluoride, PVDF), poly- Tetrafluoroethene (polytetrafluroethylene, PTFE or Teflon), polymethylpentene (polymethylpentene, PMP), polysiloxanes, the polyethers such as Poly(D,L-lactide-co-glycolide (poly (lactic-co-glycolic acid), PLGA) And at least one of polyalkenes.

Make-up machine 50 controls through control main frame 10, by adhesive coated film B, is covered in film substrate A upper surface and following table Face, while exposed anisotropy conducting sphere P is coated, and be bonded to each other with film substrate A so that anisotropy conducting sphere P is sandwiched Between film substrate A and adhesive coated film B, the anisotropy conductive film of three layers of stacking structure of tool is formed.

For example, above-mentioned film substrate A and adhesive coated film B can include epoxy resin, phenoxy resin, phenolic aldehyde tree The polyenes such as fat, polyurethane, acrylate, methacrylate, polyamide, acrylic rubber, polyester, rubber-like, and foregoing material Material all be can be used alone or be used in mixed way to prepare film.

Then an embodiment of the manufacturing system actual operation to the utility model anisotropy conductive film elaborates. Prepare a mould M, its upper surface MS includes multiple pothole MH arranged with specific pattern, and the send instructions of control main frame 10 are to spilling Ball machine 20, multiple have previously been stored in is spilt the anisotropy conducting sphere P of the storage device of ball machine 20 and uniformly spray covering mould M upper surfaces MS, anisotropy conducting sphere P diameter are less than the trans D D1 of pothole MH on mould M, and pothole MH is conductive by anisotropy Ball P is filled up.

It is prominent pothole MH, i.e. anisotropy conducting sphere P trans D at the top of anisotropy conducting sphere P in this embodiment Longitudinal depth more than pothole MH, therefore using ball machine 30 is scraped comprising blow gun portion, the control through control main frame 10, scrape ball machine 30 Blow gun portion spray gas along mould M upper surface MS, remove unnecessary anisotropy conducting sphere P so that each pothole MH only holds The anisotropy conducting sphere of single is put, and mould M upper surface MS do not have any anisotropy conducting sphere P.

Then the send instructions of control main frame 10 have viscosity to ball transfer interpreter 40 is grabbed using the lower surface 41 of ball transfer interpreter 40 is grabbed Characteristic, take away pothole MH by being picked up positioned at pothole MH anisotropy conducting sphere P in a manner of pasting, and be transferred to film base In material A surfaces, because in this embodiment at the top of anisotropy conducting sphere P being prominent pothole MH, i.e. anisotropy conducting sphere P transverse direction Diameter is more than pothole MH longitudinal depth, so grabbing ball transfer interpreter 40 using with flat bottom surface 41, grabs ball transfer interpreter 40 Pick up anisotropy conducting sphere P and taken away pothole MH, and further attach, be expressed to the film substrate A for heating and softening in advance Surface in.

By the one-step cooling time so that after film substrate A is cooled to room temperature sizing, separated, ball transfer is grabbed in removal Machine 40 so that grab ball transfer interpreter 40 and anisotropy conducting sphere P and be separated from each other, and anisotropy conducting sphere P is embedded in film substrate A tables In face, and it is not covered and exposed on film substrate A surface by film substrate A at the top of anisotropy conducting sphere P, further For, the anisotropy conducting sphere for being embedded in film substrate A is to be located at same level height, as shown in Figure 5.

Last control main frame 10 sends a command to make-up machine 50, and adhesive coated film B is bonded, is covered in film by make-up machine 50 Base material A upper surface and lower surface so that anisotropy conducting sphere P is sandwiched between film substrate A and adhesive coated film B, and The anisotropy conductive film of three layers of stacking structure of tool is further formed, as shown in Figure 6.

Furthermore, first embodiment can transfer number by presetting one in control main frame 10 so that control master Machine 10 is sent a command to repeatedly to be spilt ball machine 20, scrapes ball machine 30, grabs ball transfer interpreter 40, is repeated to spill ball, wiper ball, is grabbed ball and transfer Action, terminate until the default transfer number of completion, then control main frame 10 communicates instructions to make-up machine 50 again, and viscosity is wrapped Overlay film B is conformed on film substrate A, covering anisotropy conducting sphere P top so that the anisotropy conducting sphere P is sandwiched Between film substrate A and adhesive coated film B.

Specifically, the anisotropy conducting sphere P for being transferred to film substrate A surfaces every time is to be located at difference spaced apart from each other Position, anisotropy conducting sphere P still keep same level height, that is, individual layer, at equal intervals arrangement so that on film substrate A The distribution density increase of anisotropy conducting sphere.

In summary, the manufacturing system of the present utility model that is mainly characterized by is easy to that anisotropy conductive film can be realized Single or multiple transfers, the distribution density of anisotropy conducting sphere is not only improved to improve the electrical of connection line, and it is each different Tropism conducting sphere is disposed on predeterminated position rather than arbitrarily distribution, so can reach small spacing (Fine Pitch) essence really Seal the requirement of dress.

Furthermore the anisotropy conductive film that the utility model manufacturing system makes has in same level height and is individual layer The anisotropy conducting sphere of the characteristic that is spacedly distributed of structure, accordingly ensure that each anisotropy conducting sphere is not contact with each other and keep It is electrically insulated.

It the foregoing is only to explain preferred embodiment of the present utility model, be not intended to according to this do the utility model Any formal limitation, therefore, it is all have make relevant any modification of the present utility model or change under identical creation spirit More, the category that the utility model is intended to protection should be all included in.

Claims (8)

1. a kind of manufacturing system of anisotropy conductive film, it is characterised in that include：

One control main frame；

One spills ball machine, and comprising a storage device and a nozzle, the storage device deposits multiple anisotropy conducting spheres, this spill ball machine with The control main frame is connected, and is controlled via the control main frame, and anisotropy conducting sphere is passed through using gravity or pressure-air should A mould of the nozzles spray covering with multiple potholes；

One scrapes ball machine, and comprising scraper or blow gun portion, this is scraped ball machine and is connected with the control main frame, and via the control main frame control System, the unnecessary anisotropy conducting sphere of the mould upper surface is struck off；

One grabs ball transfer interpreter, and this, which grabs ball transfer interpreter lower surface, has viscosity, and this is grabbed ball transfer interpreter and is connected with the control main frame, and Controlled via the control main frame, the anisotropy conducting sphere being retained in the mould pothole is picked up and takes away pothole, and attached and squeeze After being pressed onto in a film substrate surface, remove this and grab ball transfer interpreter；And

One make-up machine, the make-up machine are connected with the control main frame, are controlled via the control main frame, adhesive coated film is fitted in The film substrate upper surface and lower surface, while the film substrate and exposed anisotropy conducting sphere are covered, form three layers of heap of tool One anisotropy conductive film of stack structure, and the anisotropy conducting sphere is the same level height positioned at the film substrate surface Degree, each anisotropy conducting sphere are separated from each other independently without contacting；

Wherein, the control main frame sequentially transmit corresponding instruction to this spill ball machine, this scrape ball machine, this grab ball transfer interpreter and the patch Conjunction machine, it is set to perform corresponding action, the pothole on the mould is arranged with a specific pattern.

2. the manufacturing system of anisotropy conductive film according to claim 1, it is characterised in that the specific pattern is a square System of battle formations case, the pothole have a transverse width and a longitudinal depth, and the transverse width further has a trans D.

3. the manufacturing system of anisotropy conductive film according to claim 2, it is characterised in that the transverse width is a circle Shape, longitudinal depth are 0.5 micron to 10 microns, and the trans D is 1 micron to 10 microns.

4. the manufacturing system of anisotropy conductive film according to claim 1, it is characterised in that adjacent two pothole it Between spacing be 10 microns to 100 microns.

5. the manufacturing system of anisotropy conductive film according to claim 1, it is characterised in that this is grabbed under ball transfer interpreter Surface has multiple teats, and the widthwise size of the teat is less than the trans D of the pothole, and the teat is in alignment with phase Corresponding pothole and capture the anisotropy conducting sphere in the pothole.

6. the manufacturing system of anisotropy conductive film according to claim 1, it is characterised in that this grabs ball transfer interpreter by more Porous material is formed, and is used and is applied a negative pressure to the porous material layer and provide this and grab ball transfer interpreter lower surface one and inhale upwards Power, the porous material include dimethyl silicone polymer, PFPE, polypropylene, polyvinylidene fluoride, polytetrafluoroethylene (PTFE), poly- At least one of the polysiloxanes, polyethers and polyalkenes such as methylpentene, Poly(D,L-lactide-co-glycolide.

7. the manufacturing system of anisotropy conductive film according to claim 1, it is characterised in that the anisotropy conducting sphere Top do not covered and exposed on the surface of the film substrate by the film substrate.

8. the manufacturing system of anisotropy conductive film according to claim 1, it is characterised in that the control main frame is according to making User sets, and presets a transfer number, repetition sequentially spills ball machine to this, this scrapes ball machine and this is grabbed ball transfer interpreter and sends instruction, directly Terminate to the default transfer number of completion, then control main frame send instructions to the make-up machine.